Generalized hypertree decompositions: np−hardness and tractable variants
Georg Gottlob‚ Zoltán Miklós and Thomas Schwentick
Book Title
Proceedings of the Twenty−Sixth ACM SIGACT−SIGMOD−SIGART Symposium on Principles of Database Systems‚ June 11−13‚ 2007‚ Beijing‚ China
Editor
Leonid Libkin
ISBN
978−1−59593−685−1
Pages
13−22
Publisher
ACM
Year
2007